Question

An electric kettle of 1500 ohm works on 230V supply . Calculate the electrical energy consumed when heater works for 1 hour

Answer 1

Answer:

Explanation

R=1500ohm

v=230v

we know that

ohms low

v∝I

v=rI

I=V/R

I=230/1500

I=0.153 ampear

P=VI

P=230*O.153

P=35.19 W

the electrical energy consumed when heater works for 1 hour

P=WORK\TIME

WORK=35.19*60*60

WORK=126684 J